since when that

USAGE SUMMARY

The phrase "since when that" is not correct and usable in written English. It is not standard and may confuse readers. An example could be: "Since when that rule was implemented?" Alternative expressions include "since when" and "since when has."

⚠ May contain grammatical issues

News & Media

Formal & Business

Science

Human-verified examples from authoritative sources

Exact Expressions

1 human-written examples

Most Americans who have debt don't die with a ton of money or assets leftover, and credit card companies clamber to get to the estate first, since when that money gets paid off to other agencies, the debt goes away.

Vice

Human-verified similar examples from authoritative sources

Similar Expressions

59 human-written examples

This means we have come a long way since 2011 when that figure stood at 12.5%.

The Guardian

Dolores Huerta has been doing it for 56, since back when that kind of thing could get you lynched.

The Guardian - Opinion

Glasses, it has to be said, have come a long way since 1937 when that poem of Parker's was published.

Independent

Since 2006, when that post was abolished, they have been allocated to the elected speaker of the House or Lords, Baroness Hayman.

Independent

The policy of engagement with China, even a constantly pilfering China, is as right now as it has been since 1972 when that policy began.

The Economist

The Avalanche had not won in six visits to the Meadowlands since 1995, when that franchise relocated from another Canadian landmark, Quebec City.

The New York Times - Sports

Since 2008 when that policy started, productivity improvements, including better energy efficiency, have generated $6.6 billion in productivity gains, according to Kevin McKnight, chief sustainability officer.

BBC

Since 1975, when that nation's kingdom nationalized its gas sector, major oil companies have been shut out of Saudi Arabia, which holds the world's fourth-largest reserves.

Forbes

It's the fewest number of home games in a regular season since 2007 when that squad also played just six times at Homewood.

Los Angeles Times

It will be the longest stretch of contests away from College Park since 1956 when that squad played at Duke, Navy, Virginia and Johns Hopkins in succession.

Los Angeles Times

Expert writing Tips

Best practice

Favor the concise and grammatically correct "since when" to question or express disbelief.

Common error

Avoid using "that" after "since when". It adds unnecessary words and detracts from clarity. Use the simpler, more direct form: "since when".

Linguistic Context

The phrase "since when that" functions as an interrogative expression used to question or challenge a preceding statement or action. It implies surprise or disbelief. While not grammatically standard, related expressions are common.

Expression frequency: Rare

Frequent in

News & Media

33%

Formal & Business

33%

Science

33%

Less common in

Wiki

0%

Reference

0%

Social Media

0%

Ludwig's WRAP-UP

The phrase "since when that" is considered grammatically incorrect. It's a non-standard variant of the more common and accepted "since when", used to express surprise or challenge a preceding statement. While examples exist across various sources, including News & Media, Formal & Business, and Science, its rarity suggests avoiding it in formal writing. Consider using "since when" or rephrasing your sentence for clarity and grammatical correctness. Ludwig AI confirms its non-standard status, suggesting the use of more grammatically accepted alternatives.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

since when

Omits "that", creating a grammatically correct and more concise expression.

how long ago was that

Rephrases the question focusing on the duration since a past event.

when did that start

Focuses on the point in time when something began.

on what grounds

Challenges the justification or basis for something.

what's the basis for that

Directly asks for the rationale behind a statement or action.

where did that come from

Questions the origin or source of an idea or statement.

since what time

Focuses on the specific time from which something has been happening.

when did that become a thing

Questions when something became popular or accepted.

since when has that been the case

A more formal way to express disbelief that something is true.

how did that happen

Inquires about the process or events that led to a particular outcome.

FAQs

How can I use the phrase "since when" correctly?

Use "since when" to express surprise or disbelief about a new development or situation. For example, "Since when is it okay to interrupt?"

What does "since when" imply in a conversation?

It suggests that something has changed unexpectedly or that a previously understood rule or condition is no longer valid. It often carries a tone of mild challenge or skepticism.

Are there more formal alternatives to "since when"?

Yes, you could use phrases like "on what basis" or "what is the justification for "that"" to express a similar sentiment in a more formal setting.

Is "since when" appropriate for formal writing?

While grammatically sound, "since when" is generally considered informal and might be better replaced with a more formal expression like "on what grounds" or a rephrased question in academic or professional contexts.